docs(docs): 📝 update documentation files

update ruff and pyproject.toml. Sync or reinstall the package

.env.example

@@ -0,0 +1,10 @@
+# This file lists the environment variables used by logwatcher.
+
+## EWS connection to the OWL Exchange Server
+EMAIL=mail@client.fr
+PASSWORD=password123
+EWS_URL=https://mail.client.fr/EWS/Exchange.asmx  # Default mail server
+
+## Report email
+N2_REPORT_RECIPIENTS=n2-support@client.fr
+N2_REPORT_SUBJECT=[Logwatcher] Rapport erreurs N2